Marritza uses his Kalla-Nohra syndrome in order to make everybody think he is Darheel. But he was actually at Gallitep, so he should know that Darheel wasn't there during the accident and so never had Kalla-Nohra.

Plotline

When a Cardassian Gul is detained on board DS9, Kira must face up to a man who positively enjoyed the occupation - and is quite happy to boast about it.